diff --git a/test_hash.h b/test_hash.h
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+/*
+* Copyright (c) 2020 AIIT Ubiquitous Team
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL
+v2.
+* You may obtain a copy of Mulan PSL v2 at:
+* http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+/*************************************************
+File name: test_hash.h
+Description: a application of test hash function
+Date: 2023/10/02
+Author: Lu Xin
+*************************************************/
+
+#ifndef TEST_HASH_TEST_HASH_H
+#define TEST_HASH_TEST_HASH_H
+
+//余数：也是指针数组的元素个数：也是链表的个数
+#define N 13
+
+//这个定义的是 指针数组的 每个指针的大小，(64位系统)8个字节
+#define ADDR_SIZE 8
+
+//hash表的链表的节点
+typedef struct node {
+    int data;//存数据
+    struct node *next;//存指针
+}hashType;
+
+//创建hash表
+hashType **create_hash();
+
+//插入数据
+int insert_hash_table(hashType **h, int data);
+
+//遍历
+int show_hash_table(struct node *head);
+
+//释放链表节点
+void free_hash_table(struct node *head);
+
+//查找数据
+int search_hash_table(hashType **h, int data);
+
+#endif //TEST_HASH_TEST_HASH_H
+